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2081 Sazava (1976 DH)
Classification: Main-belt Asteroid          SPK-ID: 2002081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628004959139868 3.3644e-08  
a 2.452103659678187 8.5158e-09 au
q 2.052899967850077 8.4314e-08 au
i 3.903395837505649 4.2149e-06 deg
node 66.34218263242803 5.3665e-05 deg
peri 223.681583626458 5.5187e-05 deg
M 334.151826950914 1.367e-05 deg
tp 2458701.201054168639
(2019-Aug-05.70105417)
5.3412e-05 TDB
period 1402.512256160866
3.84
7.3061e-06
2e-08
d
yr
n .2566822488848957 1.3371e-09 deg/d
Q 2.851307351506298 9.9021e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2447  
   data-arc span      25237 days (69.10 yr)  
   first obs. used      1950-07-10  
   last obs. used      2019-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4884  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:22:08  

Additional Information
 Earth MOID = 1.03811 au 
 Jupiter MOID = 2.31658 au 
 T_jup = 3.473 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.14   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 7
diameter diameter 16.669 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 66.202 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.022   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
B-V BV 0.598   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.33 deg.
U-B UB 0.223   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.33 deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

2081 Sazava (1976 DH)          Discovered 1976-Feb-27 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1976 DH = 1946 LA = 1950 NH = 1950 NP = 1958 RJ = 1968 DD = 1974 XM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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